After her ex-boyfriend dumps her to marry the boss's daughter, Cha Eun-Seo swears off love and gets a job at a rival company for a fresh start. But her plan goes awry when she has a one-night stand with her new sexy CEO, Lee Won-Woo! Eun-Seo runs from the hotel, leaving behind a heel that Won-Woo uses to find her. She wants nothing to do with him, but his interest in her only grows. With such a fervent suitor, can Eun-Weo stay away from love? Or can Won-Woo bring her the happy ending she wanted? (Source: Tapas) Note: Chapter count includes ten side story chapters.